Do not resolve the selector to find the getter, but the receiver instead.

frog/leg/resolver.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 class TreeElements {
   Map<Node, Element> map;
   TreeElements() : map = new LinkedHashMap<Node, Element>();
   operator []=(Node node, Element element) => map[node] = element;
   operator [](Node node) => map[node];
 }
@@ skipping 352 matching lines @@
     Element target = resolveSend(node);
     // TODO(ngeoffray): If target is a field, check that there's a
     // setter.
     // TODO(ngeoffray): Check if the target can be assigned.
     Identifier op = node.assignmentOperator;
     if (op.source.stringValue !== '=') {
       // Resolve the getter for the lhs (receiver+selector).
       // Currently this is the same as the setter.
       // TODO(ngeoffray): Adapt for fields.
       Element getter;
       if (node.isIndex) {

[ahe, 2012/01/10 11:42:26]

I don't think there is a need for this if-test.

[ngeoffray, 2012/01/10 11:45:35]

Indeed, I just wanted to have different code paths for both, letting me have the
TODO there, and refactor once we know how to handle real setters.

         getter = target;
       } else {
         // TODO(ngeoffray): Find the getter from the setter.
-        getter = context.lookup(node.selector.asIdentifier().source);
+        getter = target;
       }
       useElement(node.selector, getter);
     }
     return useElement(node, target);
   }
 
   visitLiteralInt(LiteralInt node) {
   }
 
   visitLiteralDouble(LiteralDouble node) {
@@ skipping 326 matching lines @@
 class TopScope extends Scope {
   Universe universe;
 
   TopScope(Universe this.universe) : super(null, null);
   Element lookup(SourceString name) => universe.find(name);
 
   Element add(Element element) {
     throw "Cannot add an element in the top scope";
   }
 }